Question

the total pressure excerted by a mixture of 5g neon and 10g of nitric oxide is present in a cylinder at 298k is 3.5 bar. calculate the partial pressure of the two gases. ​

Answer 1

Answer:

Explanation:

You can solve this problem by using Dalton's Law of Partial Pressures, which states that the partial pressure of a component of a gaseous mixture depends on the mole ratio of said component and the total pressure of the gaseous mixture.

∣

∣

∣

∣

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

a

a

P

i

=

χ

i

×

P

total

a

a

∣

∣

−−−−−−−−−−−−−−−−−−

, where

P

i

- the partial pressure of component

i

χ

i

- its mole fraction in the mixture

P

total

- the total pressure of the mixture

Since you already know the total pressure of the mixture, focus on finding how many moles of each gas you get in the mixture.

To do that, use the molar masses of the two gases. You will have